vjw0rm | e1c16f7c77280f307b671baaf7409b6ca7772bcddec3d3bd2b667034df320e27

Resubmissions

31-03-2024 21:21

240331-z7jbwsda39 10

31-03-2024 21:18

240331-z5rv9ace3z 10

Analysis

max time kernel
14s
max time network
19s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
31-03-2024 21:21

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General

Target

5e6114efe56d6a4cb3b9efaeeb18a2c1_JaffaCakes118.js
Size

24KB
MD5

5e6114efe56d6a4cb3b9efaeeb18a2c1
SHA1

6ff4182105261e965ad8f3b373c98a9cf7b4d1bb
SHA256

e1c16f7c77280f307b671baaf7409b6ca7772bcddec3d3bd2b667034df320e27
SHA512

b4f0ccbee4c3e891f085ef6108d36b2f65c7efb3d01bb28ed848072bb25426d831df24f7651a41067b34311b1e2b30c381ba456ca8f2a7535e8b687ac702d105
SSDEEP

384:Jm3uw3bKnVw/cj2i3TvskXpuYno5w9FW0z7KQuDFPlglpxivySfj/MGznhfd1:klrKOfiYkXpNn4wHjz0gT6BP

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

5 2372 wscript.exe

flow	pid	process
5	2372	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

Processes:

wscript.exewscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5e6114efe56d6a4cb3b9efaeeb18a2c1_JaffaCakes118.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IgOMTiUSwr.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IgOMTiUSwr.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\IgOMTiUSwr.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3W2CQPM6PM = "\"C:\\Users\\Admin\\AppData\\Roaming\\5e6114efe56d6a4cb3b9efaeeb18a2c1_JaffaCakes118.js\""	wscript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 2372 wrote to memory of 2860	2372	wscript.exe	wscript.exe
PID 2372 wrote to memory of 2860	2372	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\5e6114efe56d6a4cb3b9efaeeb18a2c1_JaffaCakes118.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\IgOMTiUSwr.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\IgOMTiUSwr.js

Filesize
8KB

MD5
e3e02044f9c52b7ccc612c7018a6e8cb

SHA1
4b09da4abe3f8d626043a3302f607622496c4df5

SHA256
d6fda24f2c7f287aefe429557a7b6dc2c4b3f6e8c04fe753352dc79cf6d14938

SHA512
8e491eef71548162d30d1e11bf09ec2a3d1223c2b1a5314ff6939dcfc5e261da5ea62e3a201c9e07c0d965df82db489907513cfa57e0b8b963e4cb7d3d2e2e85

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